3w-13w=-20
Combine like terms
-10w=-20
divide both sides by -10
w=2
The -4 represents a horizontal translation of 4 units to the right
2 1/4 times 3 1/9
Make the fractions into decimals
So now it’s 2.25 times 3.11...
Multiply that to get 6.99 but since the 3.11... is a repeated sequence you would round it to 7, which is your answer!
